Description

SiYuan is a personal knowledge management system. Versions prior to 3.5.4 contain a logic vulnerability in the /api/file/globalCopyFiles endpoint. The function allows authenticated users to copy files from any location on the server's filesystem into the application's workspace without proper path validation. The vulnerability exists in the api/file.go source code. The function globalCopyFiles accepts a list of source paths (srcs) from the JSON request body. While the code checks if the source file exists using filelock.IsExist(src), it fails to validate whether the source path resides within the authorized workspace directory. Version 3.5.4 patches the issue.

INFO

Published Date :

2026-01-19T19:57:29.460Z

Last Modified :

2026-01-20T20:05:11.018Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-23851 vulnerability.

Vendors Products
B3log
  • Siyuan
Siyuan
  • Siyuan
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-23851.

URL Resource
https://github.com/siyuan-note/siyuan/commit/b2274baba2e11c8cf8901b0c5c871e5b27f1f6dd cve-icon cve-icon
https://github.com/siyuan-note/siyuan/commit/f8f4b517077b92c90c0d7b51ac11be1b34b273ad cve-icon cve-icon
https://github.com/siyuan-note/siyuan/issues/16860 cve-icon cve-icon
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-94c7-g2fj-7682 cve-icon cve-icon
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Detailed values of each vector for above chart.
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